Chair fitting device



Aug. 18, 1953 s. H. BROWN CHAIR FITTING DEVICE 6 Sheets-Sheet 1 FiledMarch 51 1950 INVENTOR. 50; H, BROWN WWW Aug. 18, 1953 s. H. BROWN CHAIRFITTING DEVICE 5 m a 0 a 0 I3 5 2 KM .2.

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INVENTOR. H. BROWN 8, 1953 I s. H. BROWN 2,648,910

CHAIR FITTING DEVICE 6 Sheets-Sheet 3 Filed March 31, 1950 INVENTOR. So.H. BRaw/v W t/% By a 5 Arron/vars. 5

1 53 s. H. BROWN 2,648,910

CHAIR FITTING DEVICE 6 Sheets-Sheet 4 Filed March 31, 1950 E 58 I W 5s57 I I I A l0 ilk. 72 -66 38 42 4 41-1 4 l 3 6 v 6 x11 XIII: INVENTOR.

ATTORNEY Aug. 18, 1953 s. H. BROWN 2,648,910

CHAIR FITTING DEVICE Filed March 31, 1950 6 Sheets-Sheet 5 WIVJZ ay/#7IN VEN TOR. .501- H. Bfiaum/ ATTOF Aug. 18, 1953 s. H. BROWN CHAIRFITTING DEVICE Filed March 31 1950 GShgets-Sheet 6 INVENTOR. 8 01.. H,Ema w I m r AJ'NRNEY Patented Aug. 18, 1953 UNITED STATES PATENT OFFICECHAIR FITTING DEVICE Sol Herbert Brown, San Francisco, Calif.

Application March 31, 1950, Serial No. 153,046

6 Claims. (01. 33174) This invention relates to a chair fitting devicefor use in obtaining the desired information for making chairs that willconform to the desires or physical characteristics of individual users,or for altering chairs to the same end.

The principal object of the invention is the provision of means forquickly, accurately, and easily obtaining the necessary information formaking chairs that will conform to the desires or physicalcharacteristics of individual users, or for altering chairs to the sameend.

Heretofore, in making a chair to the individual order of a user, insofaras its utility is concerned, it has been necessary to merely approximateaccomplishing the desires of such user by the relatively primitivemethod of blocking up, filling out or removing certain portions of anexisting chair, supplemented by verbal instructions where deficienciescontinue to exist. This procedure is prohibitively costly and theresults leave much to be desired due to the impracticability of makingcertain adjustments.

Another method, and the one most commonly employed is for the user totry out an assortment of chairs in an effort to obtain one that may fitbetter than the others. This, of course, requires a large assortment ofchairs and in the end the user must resort to verbal instructions forthe changes to be made, with the result that the final chair that isproduced seldom comes up to the expectation of the user, particularlywhere consideration is given to the cost involved.

With the present invention, each detail of the chair from the standpointof fit and comfort as applied to the particular individual who will usethe chair, is quickly and accurately determined and the chair that ismade in accordance with the data obtained from use of the said inventionwill be entirely free from any guesswork as to size, fit, tilt,different relationships between such parts as the seat, back, arms andthe other details that may enter into making an individually fittedchair.

Other objects and advantages will appear in the drawings anddescription.

In the drawings,

Fig. 1 is a top plan view of a preferred form of the invention, onecorner being broken away and in section to disclose certain structure.

Fig. 2 is a side elevational view of the device shown in Fig. 1 as seenfrom the side provided with the adjusting wheels seen in Fig. 1.

Fig. 3 is an enlarged fragmentary sectional view taken along line 1IIIIIof Fig. 1.

Fig. 4 is an enlarged fragmentary sectional view taken along line IV--IVof Fig. 1.

Fig. 5 is a fragmentary enlarged sectional view taken along line V-V ofFig. 3, the inner upholstering in the seat portion being omitted forclarity.

Fig. 6 is an enlarged sectional view of one-of the arm supports as seenalong line VI-VI of Fig. 5.

Fig. '7 is an enlarged fragmentary sectional view of a bearing for thearm support as seen along line VII of Fig. 5.

Fig. 8 is an enlarged fragmentary sectional view of another bearing forthe arm support as seen along line VIII of Fig. 5.

Fig. 9 is a top plan view of the rear of the seat adjusting mechanism(one gear being in cross section) and the back of the seat beingindicated in dot-dash lines.

Fig. 10 is a rear view of the seat adjusting mechanism as seen from theback of the seat, the latter being indicated in dot-dash lines. Line x-xof Fig. 4 indicates the point of view.

Fig. 11 is a fragmentary sectional view taken along line XIXI of Fig. 3with the foot rest omitted, but with its outline indicated in dotdashlines.

Fig. 12 is a fragmentary sectional view taken along line XIIXII of Fig.11.

Fig. 13 is an enlarged fragmentary sectional view of one of the backadjusting means as seen from line IGII-XIII of Fig. 10.

Fig. 14 is an enlarged fragmentary View of a portion of the adjustingmeans as seen from line XIV--XIV of Fig. 10.

Fig. 15 is a fragmentary enlarged sectional view of part of one of thecontrol or adjusting means on line XV of Fig. 3.

Fig. 16 is a semi-schematic sectional view showing the various seatadjustments in dotdash line with the seat and back being indicated infull line in one position.

In detail, the invention as illustrated in the drawings comprises anupholstered back I (Fig. 1) and seat 2, arm rests 3, and foot support 4.These parts are movable relative to each other. The upholstering orpadding in the seat and back and arm rests may be of any conventionaltype. It is not removed or altered in making seat and back adjustmentsand the seat and back frames are adapted to support any type ofconventional upholstery.

The seat frame includes a pair of parallel opposed vertically disposedframe members 5 having oppositely outwardly opening horizontal parallelchannel members 6 secured thereto along the upper edges of said framemembers 5 (Figs. 4, 5) projecting downwardly from the lower forwardcorners of said frame members are aligned bearings I through which ahorizontal shaft 8 extends on which said bearings are pivotallysupported. This shaft is rotatably carried in bearings on frame membersIn of the chair (Figs. 5, 11).

From the above it will be seen that the chair seat frame is pivotallysupported at its forward end on shaft 8 for swinging from full lineposition 2 of said, seat in Fig. 16 to dOtrdaSh line position 2' and toany degree of incline between said positions 2, 2'.

It is to be understood that the depth of said seat (front to rear) issufficient to properly: seat persons of different sizes. As will belater explained, the back is preferably adaptedto-move over the seatfrom front to rearso as toenable the seat and back to be adjustedrelatively to From the above, it is seen that preferably, the seatitself is not moved forwardly or backwardly, but is merely tilted abouta horizontal axis, as desired.

The channel members 6 at opposite sides of the seat frame projectrearwardly of the side frame members -5 for a substantial distance andterminate re'arwardly of the seat and of the back when the latter is inits most rearward position.

Within each channel member 8 is a horizontal screw 3|, each screw beingrotatably supported and held at its ends in bearings 32 secured: tothesaid channel members (Fig. 4). The back frame carries a bracket 33 rigidtherewith'at each side of the seat, and each bracket is providedatits,rear end with an internally persons having widely different physicalcharacteristics.

' Theadjusting of theinclination of the seat between positions 2, 2?(Fig. 11) is accomplished bythe provision of a pair of; gear segments I2secured to the rear ends of the seat frame memhers- 5, (Fig. 4) Saidsegments extend upwardly and'thel teeth are along lines concentric withthe pivot shaft 8. Pinions l3 secured on ahorizqntal; shaft I 5, that inturn is journalled in hearings on rigid frame members I5 (Fig. 3) havetheir teeth in mesh with the teeth of the s ar m t I 2.

The;sha f t I l-is provided with a sprocket wheel !5' over which asprocket chain I6 extends. The chain It also'extends over a sprocketwheel ll (Fig. 5) that is secured on rotatable pivot shaft 8.

The shaft 8.also has-a worm wheel i8 (Fig. 3) secured thereon, whichworm wheel is in mesh witha worm i9. Worm lfl is secured on'a verticalshaft 29, said shaft 26; being journalled at itsends-in bearings 2!securedto the rigid'frame of; the device, The upper end of shaft has abevel gear 22 secured thereto, the teeth of which are; in'-.mesh; wit hthe teeth of a bevel gear 23' thatis secured on one end of a horizontalshaft 23. This shaft 23 in turn is rotatably supported on the rigidframeof the machine which includes a control box 25 (Figs. 1, 2) at one sideof the seat. The end of shaft 23 opposite bevel gear r23-f extends outof the outer vertical side of the control boxand has a hand wheel 24,securedthereto forrotating shaft 23 in either direction. A worm- 25 onshaft 23 is in mesh with a worm wheel 21 (Fig. 1) that in turn isonashort vertical shaft 28. The upper end of shaft-.1281 extends-throughthe upperside of the control box 25 and an indicator arm or needle29.01; theupper exposed end of shaft 28 is adapted to scan a coded dial3%, or to point to indicia on'a dialaround the axis of shaft 28.

Normally, when the seat 2 ishorizontal, the indicatorarmorneedle -29may, for example, be-directed toward agraduation that reads zeroortheequivalent. Upon rotating the hand wheel 24.. in;.a.direction forcausing the pinion 13 to lower the rear end of seat.2, the needle 29will progressively move toand past graduations that maybe designatedbyany desired symbols, and which symbols mayread directly indegrees ofangle between the seat;and vertical or horizontal, or may provide forany other desired reading Whatever the reading or symbol is, it is onefrom which: the. angular position of the seat may be readily determinedand code markings may be .used forthis purpose and translatable into.the information desired.

threaded projection 34 through which the screw 3|. threadedly extends.The forward end of each bracket 33 has a similar projection 35 throughwhich screw 3'! slidably extends and upwardly projecting; lugs 35, ontheforward ends of bracke etsBR. have axially 'alignedoperings for axially,aligned pivots 31 that connect the back with the brackets, Thus,the-back is adapted to swing about the pivots. 31-; and said. pivots-arepositioned adjacent the; forward-:side of the back seen inFig, 4.

By rotating the screws 3:1, thebrackets 33; and consequently the-back.I; will: be. moved. either. toward or away from'the front edge ofseat. 2according to the direction-of rotation: of. said screws.

The rear ends of screwed! each -carryya bevel gear 38- (Figs. 10, 13).A. pair of. bevelv gears 39 securedon a;horizontal shaft 39 that extendsbetween gears SBIha etheir-teeth in'mesh with the teeth of gears- 38:Shaft 39! is journalled in bearings til-that: are secured toacross'framemember .1 that in turn connects therrear'ends of channelmembers 5-.

One of the ends of shaft- 39-? has. a;- sprocket wheel iZsecuredthereto(Fig. 10). A sprocket chain-53 .con-nectssaid wheel-42 with a sprocketwheel lid-thatais. in turn secured omone end-of.- a'sleeve 45 (Fig; 5)-that issrotatableonthe pivot shaft. 3., The other end. of sleeve. 45has a. sprocket. wheel -46; A-- chain 4-1 :ccnnectssprocket wheel-e5with a-sprocket-wheel-48e (Fig-. 3) that: is onaishaftwia Said shaft49-:is paralleluwith'i andsimilar to the shaft-23' that-has-handiwheeli.2 securedsthereto, and-a similar hand-wheel- 50 islsecuredon-shaft%49-.:for rotating the latter. This; hand wheel 50. isc0nnected..with.an; indicatcr 5i (Fig. 1) that is oIr-ar vertical shaft:52 by;-worm gears (not shown) that are -identi-. cal withithe-gears-2.5; 21 that. are-respectively: on shafts-23; 28.: Indicator: 51 scans.or moves aroundray; dial 53 having: any; desired 2 symbols v thereon:fordndi-c'ating. the relationship between. the back;- and the;forwardtedge .cfrthe seat:

By, the. foregoing. explanatiom. it will Ice-seem that the seat 2 istilted by actuation of thehandwheel, 2t; andtheback will move downwardlyor upwardly with the seat when-thelatter-is tilted. By rotation of handWheel 55', the back I-may bemoved toward and'away from theforward edgeof the seat 2, and this movementmay beeffe'ctedat any-.degree ofinclination-of the seat; aswell as when theseatis' tilted. In 'factthe-seat'may be tiltedsimultaneously with movement of the" back.

In order to swing the back-'tordifferent'angue lar positions relative tothe's eat, a pairy of 'simi-' lar segmental gears 55 are secured-to theback aeeaeio of the seat adjacent each of its side edges (Figs. 4, 13and upstanding members 56, 51 on brackets 33 have aligned bearings intheir upper ends in which the ends of a shaft 58 is rotatable.

Below, and parallel with shaft 58 is a second shaft 59 that is alsosupported at its ends for rotation in members 5 6, 51. Sprocket wheels69, 6| respectively secured on shafts 58, 59 are connected for rotationtogether by a sprocket chain 62. The sprocket Wheel and chain arediagrammatically indicated in dot-dash line in Fig, 13 in order toclearly show how the lower ends of the segmental gears 55 extend overshaft 59 in order to provide for added movement of said gears. Pinions63 secured on shaft 58 (Fig. have their teeth in mesh with the teeth ofthe segmental gears 55.

The end of shaft 59 opposite the sprocket wheel 6| extends through theupstanding member 57 and has a worm wheel 65 secured thereto. The teethof worm Wheel 55 are in mesh with the teeth of a worm 58 that is securedon a shaft 61, the latter being journalled for rotation in bearings onmember 51 (Fig. 14).

A bevel gear 69 is secured on one end of the shaft 61, and the teeth ofsaid gear are in mesh with the teeth of a bevel gear 10 that is securedon shaft 1 I Shaft 'H is journalled for rotation in bearings secured tothe cross frame 4| and the end of said shaft opposite gear 10 has asprocket wheel 12 secured thereto (Fig. 10). This sprocket wheel isconnected by a chain 13' with a sprocket wheel M that is secured on oneend of a sleeve 15. Sleeve is in turn rotatable on the sleeve 45 that,in turn, is rotatable on pivot shaft 8. Also secured on sleeve 15 is asprocket wheel 1! (Fig. 5). This sprocket wheel 11 is connected by achain it! (Fig. 3) with a sprocket wheel 19. Sprocket wheel 19 issecured on a shaft 89 that is identical with shafts 28, 52 on which handwheels 24, 58 are respectively secured. A hand Wheel 8| is secured onone end of shaft 89 and is alongside wheel 50 (Figs. 1, 2). Said shaft88 is connected by worm gearing (not shown) with a vertical shaft 82that in turn carries an indicator 83 adapted to scan or move around adial 84 having suitable symbols thereon, coded or otherwise, fordesignating the degree of inclination of the back I when wheel 80 isrotated.

It is pertinent to note (Fig. 16) that the back I may be inclinedforwardly at its upper end relative to Vertical when the seat ishorizontal. This permits the back to be adjusted to vertical positionwhen the seat is inclined, which would not otherwise be possible, andthere are some instances where it is desirable that the back I bedisposed at an acute angle relative to vertical, which is usually whenthe seat is inclined.

In connection with the back tilting means, it is pertinent to note thatthe back may be tilted by revolving hand wheel 8| either simultaneouslywith making the other adjustments, or independently of the means formaking said other adjustments. It is immaterial whether the seat islevel, or tilted, or whether the back has been moved forwardly orrearwardly. At any time the backmay be tilted.

In Fig. 5 it will be seen that the arm rests 3' are each carried on theinner end of an arm 85. These arms 85 extend toward each other fromopposite sides of the seat and above the latter, therefore their innerends are their adjacent ends that are nearest each other. I

The arm rests are identical, hence a description of one,.including itssupporting and operatingmeans, will sufiicefor the other, although, aswill be later explained, more in detail, a common means is connectedwith the arm rest elevating means for simultaneouslyactuating them forcorresponding upward and downward movement, and another common means isconnected with them forsimultaneously moving the arm rests toward andaway from, each other.

Ateach side of the seat 2 are a pair of vertically disposed, rigid,guide members 88 (Fig. 3) and between each of-said pairs is averticalslide 81 that is held on said guides for vertical movement up anddown..

, Each slide 81 carries'a bracket 89 (Fig. 5) that is rigid therewith,Brackets 89 extend toward each other fromthe opposedly facing, sides ofthey slides that are at opposite sides of the seat, and each bracket 89carries horizontally disposed slide supports 90' at the upper endthereof. Slide supports 98 extend toward each other from said upper endsof the brackets 89.

Carried by each of the said slide supports 98 is a slide 9| (Fig. 6),and each slide 9| carries an arm support 92 for each of the arms thathas the arm rest 3 thereon. v

Each arm support 92 is horizontally elongated in a direction parallelwith the horizontal longitudinal axis of the seat and with each arm rest3, the latter extending in a direction from the front to rear of thechair in the usual manner for arm rests.

Each arm support comprises a horizontal, elongated base 93 lower row ofballs 94 in a straight race that extends longitudinally of said support(Figs. 6, 7) and spaced above said row in an overhead hold-downstrip 95that is secured at its ends to the base by end pieces 98 (Figs. 6, 7).The arm 85 is generally in the form of an inverted channel strip ofsubstantial width, and passes between the hold down strip 95 and the rowof balls 94 transversely thereof. At the point where each arm 85 crossesthe row of balls, it is provided with a cross rib 91 extending betweenthe downwardly extending sides of the channel strip forming each armsupport 85. The lower surface of said rib is recessed to provide anupper race for the balls 94 and is supported on balls in said row formovement of the arm support longitudinally of said row.

The outer end of each arm support. 85 extends below a flange 98 that isspaced above the slide 9| and that is secured to said slide in aposition spaced laterally from base 93, but parallel therewith (Figs, 5,8). The lower side of flange 98 is longitudinally recessed to provide arace for a row of balls I80, and the upper side of the outer end of eacharm 85 is also grooved or recessed to provide a lower race for saidballs. Astrip |0| spaced below the outer end of each arm 85 is securedat its ends to flange 98 for retaining the outer ends of said arms frommoving downwardly' a sufficient distance to enable the balls to fall outof the recess.

Balls 94 and balls I09 are respectively held by conventional cages orspacers I02, I03 in spaced relation in their races. 7

From the foregoing, it will be seen that the arm rests 3 may easily andreadily be moved longitudinally in directions toward and away from backNo mechanism is required for this movement, inasmuch as the arm rests onchairs are practically always horizontal and will stay in whateverposition they are moved. This manner of movement of the arm rests isalso highly desirablei' sci-there wmi be no possible bloekifig ormovem'e'nt of the bath said rests; when saidback is being adjusted; Ifthe arm rests were locked in position, it: would, many instances;- benecessai y to unlock th'e'mbeforachangirfg the position of thebackiThis: would be undesii ablei whereas byenabling the: user: to freelymovethe arm rests f orwardly or nackwardly whet-i seat'ed in the chair, theback is-fi 'ee to move tb any position,-- e'ven were tl'ie en'ds ofthearm rests m engagement with tliebacls l Elevation 015 the arm restsis prlivided for by providing f for vertical movenient of the slid'e 81.

Secured to each of the oppositely outwardly facing sides of- Ver ticalslides" E7 is a threaded member I- through which extends a verticalscrew I06: inthreaded engagement with thethreads in each member (Fig-2 3Eaeli-screw II)? is rotatably secured at: its lowerend in a' bearing onthebase III-'I of 'tlie deviee; and 'the lower emt of each screw has aspiralgear I08 secured thereon, the teeth ofi whicli-"spirai gears are,in turn, in mesh with the -teeth o f worin -gears that arerespectivelysecured on the endsof" a horizontal I shaft m (Fig; i 5)Bearin'gs s'ecured: to base I 01 or to any rigid part ofth'edevicemayrot'atablysupportshaft I III-E 7 Alsoseeured on shaft" I I6 is a;sprocket wh"ee1- II I (Fig-3) that-i's'cdrifiebtd by-a'-ch'ain l li witha: sprocket H3 on a horizontal shaft H4. This shaft I I I a isidentical- -w'ith' -shaifts 49 and 80 and v is parallel therewith. Saidshaft I lissa-hand wheel I i5 seourecl on one end and which wheel isone'mf the row of hand wheels that isalong the: lateral s'ide ofthecontrol box' 2 5 (Figs; 1, 2-); A worm"'geanconneetion' connectsshaft I I4 with vertical shaft l l fi that ha's amifidie'at'or I I 'Ithere-'- on. Thisindicator 'seansor moves around-a dial I 'I 8 that isp'i'o lid'ed with' symbeis: adapted to indicate, or: to be translatedfer indicating, the hei'ght of the arin rests-relativeto the seat orrelative-to 'any 'otlier"desir'ed iart.

B'y ro'tatirig the' harm wheel II 5 in one diree tion or the other thearm rest'swill-be simuh taneously moved up or clown; and this movement'ma be: attested: simultaneoiisly with the otfier adjustments orbyitsel-f "irrespective ofthe relative positions of the other parts ofthe device.

The horizontal slide-S 91 01i which the arrfi r'ests are carried, eachhas on its under'sidea down wardliy'proj eeting threaded"'iriemher I 20(Fig? 5) Horizontal axially" aligned screws I 24 frest)e'ctiveljrextendthrOiIgh-these members inthreaded-' enagementitnei-ewiths The inrferadjaeeii-t endsof these screws terminate 'at points adjacent th'e 019posite sides of -the seatso as Hotte -interfere with movement of"theseat and -backi The outer en'd's oi "screws 4 I 2-! are' j ournalled inbearings suitably secured to the framebf tl ie 'coh trol box 25';- ahdea'ch outer" end ha's a spiral gear I 22 secured thereto;- H

The teeth of each-spiral gear IZZ ai-e in mesh with-the teeth o'faspiral'gea-r I23 that' is splified on a vertical shaft I24 (Fi'. 3-)' thesaidgear123 being rotatably 'carriedbetween bearinesthat are in turnsecured to ea'eh' vertical-"slicle iflJ spiOClieF-Whfiel l zs securedthereon; s'aia witeel; I2 9 is" connected bya chain-'- l's'nwitwaks'r'irdcletf wheelliaI that is,-in turn, secured oh'o'n'e' end of: aShaft I325 This-shaft- [32 1's idehtic'ailwitl'i th shafts? I'I5--andis=parallel therewith A h'and wheel I33 i's'sec'uredon one end of shaftI32 11w a worm gear"connection identical witli-tlie indfi c'at'or'controls previously des'c'ribe'd; connects shaft I32 with a-verti'c'alshaft I35 on the endofw'h'ich is'an indicator I{I that-is to'nioifearound a dial lift in one direction or the other according to thedir'e'c-tio'm of rbt'atien of the hand wheel I333 Thesyfribols on dial"I3B-"ar suclias to designate the spacing-betwe n" the arlfi rests.-

Whe'rr the hand wheel I 3'3 is rotated in one direction, the arm restswill be sir'n'ultaiieeiisly moved toward eachother', and-when said wheelis-ro't'a'ted" in the opposite direction, they will b'e moved' apart;These-moveinents ma be si'mlil taneous with the movement of any one oi-'more' of the other part's'of'th'e chair.

The foot rest ismovable vertically liji and down relative to the seat.In thi's n'ianiiei th desired elevation'of the seat from the-fieonmay bedetermined" without moving-the sea-t= A Sa'id' foot rest 4 is ahorizontal rectangular platform (Figs. 1, 11, 16 that is provide'd withan'ut Mt" (Fig; 12') at -eaeho'f-- its feiir cbrners. Tlireadedlyextending 1 thi'bli'gl'i nut I 40" 15 a vertical screw- MI. The hpfir"ends o-f the screws proj e'ct above the foot-rest arida re"joiiinailed-ior rotation in bearings lfl secureii 'inany snitable manner 00the frame of the machine; The lower ends of said s'c'rews are also'journ alledfor rotation inbearings I 43 T th'a't may 'be scurd inanysuitable manner to base 1 015 A ssrsttet' wheel Mtis seeur' d togthelower end of each-vertical screw IdI said wh'eels' being coplanar, and asprocket chain I45 extends around the'four vertical-shafts and message:ment'with said sprocket' -whe'els M1 50 that move:- ment' of' said chainin orie' directi'or'ior the other will cause simultaneous-rotation ofsa'i This chain" extends into" the cofitiorbo aroundsprocket wheel" ME-(Fig; 11-) secured on the-lower end-"eta vertical she-ft m that" is inthe control box" 2 5 (Figs.-- 1; 8-). The" said shaft M7 3 is'journ'alled fo'r retatiofi ifi' upp'er and lower bearings: M8;- l-dsthat aresecure'd tl'ie fraineo'f th'e machine.

On theupper end of shaft It? is-provideda bevel gear I53," thete'ethiofwhichai'e ifi n'ie's'h with-the'teeth of a'bevel'gear'lfiI that s.securedton a herizontalshaftI521" The oiite'rend of shaft-ml'pro'jects'from a side'of the-eofitrol box an'd h-as a hand Wheel I53 securedthereto} while the oppositezend 'of said -sh'aft ha's a w o'rm I54secured-thereto. The teeth of worm-wa ers" sea-tand the foot rest.- By:rotating 'the hahd wheel I-53 in :one direction or"theotlrer"the foetrest will be moved up or down.

Referring 1 to "Fig: 16;' it will be seen that the along -one lateral'side of thecoiitrol'boii, and? 9 side of said box, and can also easilymanipulate the hand wheels. Also, such operator can readily see the seatparts so as to observe their relationship to each other and to a personseated in the chair. I

By rotation of the hand wheel !53 inone direction or the other the footrest may be moved between the full line elevatedposition seen in Fig. 16and the lowered dot-dash line position I60, and it will stay in anyposition of adjustment irrespective of the downward force placed on thefoot rest.

'By rotation of hand wheel in one direction or the other, the seat maybe tilted about the pivot 8 between thehorizontalfull line position(Fig. 16) and the inclined dot-dash line position IGI. 'In this instancethe seat will also stay in any adjusted position due to the worm gearconnections in the adjusting means.

By rotation of hand wheel 50 in one direction or the other the back Iwill be moved forwardly and backwardly between the rearmost fulllineposition seen in Fig. 16 to the most forward dotdash line position I62.The back is locked in any position of adjustment irrespective of theforce that the person seated in the chair may apply to the back. I

By manipulation of hand wheel 8! the back of the seat may be swungbetween the inclination seen in full line in Fig, 16,- and themostforwardly inclined position I64 indicated in dotdash line. The backwill be locked in any position.

By manipulation of hand wheel H5, the arm rests will be moved up anddown between the maximum height indicated in full line in Fig. 16 andthe minimum height, indicated by-dot-dash lines I65 (Figs. 5, 16).

By manipulation of hand wheel I33 the arm rests will be moved toward andaway from each other between the full line position 3 (Fig. 5) anddot-dash line position I66.

As already mentioned, the arm rests may be moved longitudinally of thechair when they are in any position.

It is to be understood that the invention is not intended to benecessarily restricted to precise details of construction as hereinspecifically described. The illustrations and description show apreferred form of the invention.

By use of the chair, practically any fit may be quickly, easily andaccurately made, and from the data obtained, a chair may be made toorder in the desired style, and such chair will properly fit the body ofthe user.

I claim:

1. A chair fitting device comprising a rigid frame, a seat having afront edge, a back having a lower edge, pivot means respectivelysupporting said seat and said back for swinging about horizontalparallel axes respectively adjacent said front edge and said lower edge,seat and back actuating means for swinging said seat and said back aboutsaid axes including a pair of intermeshed worm gears respectively forsaid seat and said back providing means for locking said seat and saidback at any position in their movement about their respective axes, apair of arm rests spaced above said seat, means supporting said armrests on said frame for vertical movement toward and away from saidseat, movable means connecting said arm rests for said vertical movementsimultaneously, and a single control mechanism connected with said lastmentioned movable means for causing said vertical 10 movement uponactuation of said single control means. I f

2. A chair fitting device comprising a rigid frame, a seat having afront edge, aback having a'lower edge, pivot means respectivelysupporting said seat and said back for swinging about horizontalparallel axes respectively adjacent said front edge and said lower edge,seat and back actuating means for swinging said seat and said back aboutsaid axes including a pair of intermeshed worm gears respectively forsaid seat and said back providing means for locking said seat and saidback at any position in their movement about their respective axes, apair of arm rests spaced above said seat, means supporting said armrests on said frame for.vertical movement toward and away from saidseat, movable means connecting said arm rests for said vertical movementsimultaneously, and a single control mechanism connected with said lastmentioned movable means for causing said vertical movement uponactuation of said single control means, said movable means includingstationary vertical screws rotatable about spaced vertical axesrespectively adjacent each arm rest and vertically movable slides on,said frame threadedly connected with saidscrews for movement along thelatter upon rotation of said screws, said arm rests'being secured tosaid slides for movement therewith, and said single control mechanismincluding means connecting said. screws for simultaneous rotation.

3. A chair fitting device comprising a rigid frame,'a seat, a back andarm rests, guide members at opposite sides of said seat, armrestsupports carrying said arm'rests supported on said guide members formovement up and down, a mechanism connecting said arm rest supports forso moving said arm rests simultaneously, manually actuatable meansconnected with said mechanism for actuation thereof, members supportingsaid arm rests on said arm rest supports for horizontal movementtowardand away from each other, driving means connecting said members forsimultaneous movement toward and away from each other, and manuallyactuatable means connected with said last mentioned driving means for somoving said last mentioned members.

4. A chair fitting device comprising a rigid frame, a seat, a back andarm rests, guide members at opposite sides of said seat, arm restsupports carrying said arm rests supported on said guide members formovement up and down, a mechanism connecting said arm rest supports forso moving said arm rests simultaneously, manually actuatable meansconnected with said mechanism for actuation thereof, members supportingsaid arm rests on said arm rest supports for horizontal movement towardand away from each other, driving means connecting said members forsimultaneous movement toward and away from each other, and manuallyactuatable means connected with said last mentioned driving means for somoving said last mentioned members, bearings supporting said arm restson said members for reciprocable movement at right angles to theirdirection of movement toward and away from each other at any degree ofelevation of said arm rests and at any degree of movement toward andaway from each other.

5. A chair fitting device comprising; a rigid frame, a seat frame, aseat on said frame having a forward edge and a rear edge, a horizontalpivot securing said seat frame to said rigid frame for tilting said seatframe relative to horizontal and vertical, a back frame, a supportonsaid seat frame movable therewith supportin Said back frame on saidseat frameforhorizontal reciprocable movement of said backframe relativeto said seat frame toward and away from said forward edge, pivot meanssecuring said back frame to said support adjacent to said rear edge andto the opposite sides of said seat for tilting said back framerelativeto said seat frame,.arm rests, guide members rigid relative tosaid rigid frame-at opposite sides of said seat frame and an arm restsupport carrying each arm rest supported on each guide member forvertical movement independently of said seat frame, separate manuallyactuatable mechanisms respectively connected with said seat frame andwith said back frame for separately tilting said seat frame on its pivotand for moving said seat frame horizontally and for tilting said backframe on its pivot means, driving elements connecting said arm restsupports for simultaneous movement up and down and manually actuatablemeans connected with said elements for causing said last mentionedmovement independently of said separate manually actuatable mechanisms.

6. In a chair fitting device having a rigid frame and a. seat framehaving a seat thereon and a back frame having a back thereon; ahorizontal pivot supporting said seat frame for tilting movementrelative .to horizontal and vertical about the axis of said pivot, pivotmeans securing said back frame to said seat frame for swinging movementof said backframe about a horizontal axis parallel with saidfirstmentioned axis and relative to said seat frame, a foot rest, meanssupporting said foot rest for movement up and down as desired, armrests, guide members at opposite sides of said frame, arm rest supportscarrying said arm rests and supported on said guide members for up anddown movement, a control box at one side of said rigid frame, separatemechanisms extending from said .control box to said seat frame, backframe and foot restforrselectively actuating them as desired for theirrespective movements as desired, and an arm support actuating mechanismconnected with said arm supports and extending to said control box forsimultaneously moving said arm rests up and down independently of saidseat frame and said back frame, manually actuatable elements on saidcontrol box connected with each of said separate mechanisms and withsaid arm support actuating mechanism for manually actuating themindependently of each other.

SOL HERBERT BROWN.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 242,573 Wilson June '7, 1881 332,836 Robinson Dec. 22, 1885710,561 Boyd Oct. 7, 1902 919,559 DuiT Apr. 27, 1909 1,236,517 WempleAug. '14, 1917 1,527,754 Simon Feb. 24, 1925 1,564,339 Fraser Dec. 8,1925 1,590,240 Gorton June 29, 1926 1,721,221 Jauregui July 16, 19292,100,597 Pickle Nov. 30, 1937 2,359,318 Lay Oct. 3, 1944 FOREIGNPATENTS Number Country Date 410,119 Germany Feb. 24, 1925

